IBAN format in United Kingdom (GB)
An IBAN in United Kingdom is 22 characters long and starts with GB. A valid example: GB29 NWBK 6016 1331 9268 19. United Kingdom participates in SEPA.
IBAN structure in United Kingdom
| Positions | Meaning | Length | Charset | In the example |
|---|---|---|---|---|
| 1–2 | Country code | 2 | uppercase letters | GB |
| 3–4 | Check digits (IBAN) | 2 | digits | 29 |
| 5–8 | Bank code | 4 | uppercase letters | NWBK |
| 9–14 | Branch code | 6 | digits | 601613 |
| 15–22 | Account number | 8 | digits | 31926819 |
The UK remains a SEPA scheme participant even after Brexit.
SEPA status
United Kingdom participates in SEPA — euro transfers arrive like domestic ones (usually within 1 business day, no international-wire fees).
How do I check an IBAN?
Paste the number into the IBAN validator — it checks the MOD-97 checksum and the registered United Kingdom length instantly, fully in your browser.
Check an IBAN for free →IBAN formats in other countries
FAQ — IBAN in United Kingdom
How many characters does an IBAN in United Kingdom have?
A United Kingdom IBAN is exactly 22 characters: it starts with "GB", followed by 2 check digits and a 18-character national part (BBAN).
What does a United Kingdom IBAN look like?
A valid example IBAN for United Kingdom: GB29 NWBK 6016 1331 9268 19. This is the official sample from the IBAN registry — real accounts follow the same structure.
Is United Kingdom in SEPA?
United Kingdom participates in SEPA — euro transfers arrive like domestic ones (usually within 1 business day, no international-wire fees). The UK remains a SEPA scheme participant even after Brexit.
Where can I check an IBAN from United Kingdom?
Use the free svcs.bg IBAN validator — it checks the MOD-97 checksum and the registered United Kingdom length right in your browser; the number is never sent to a server.
What is inside a United Kingdom IBAN?
After "GB" and the 2 check digits come: the bank code (4 uppercase letters), the branch code (6 digits), the account number (8 digits).
The example IBAN is the official sample from the public IBAN registry (ISO 13616) and passes the MOD-97 check — it is not a real bank account.